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CVE-2022-35920

Good to know:

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Date: August 1, 2022

Sanic is an opensource python web server/framework. Affected versions of sanic allow access to lateral directories when using "app.static" if using encoded "%2F" URLs. Parent directory traversal is not impacted. Users are advised to upgrade. There is no known workaround for this issue.

Language: Python

Severity Score

Related Resources (6)

https://github.com/sanic-org/sanic/issues/2478
https://github.com/sanic-org/sanic/pull/2495
https://nvd.nist.gov/vuln/detail/CVE-2022-35920
https://github.com/sanic-org/sanic
https://github.com/sanic-org/sanic/security/advisories/GHSA-8cw9-5hmv-77w6
https://www.mend.io/vulnerability-database/CVE-2022-35920

Severity Score

Weakness Type (CWE)

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CWE-22

Top Fix

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Upgrade Version

Upgrade to version sanic - 20.12.7;sanic - 22.6.1;sanic - 21.12.2

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): CHANGED
Confidentiality (C): LOW
Integrity (I): LOW
Availability (A): LOW

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